Marshall Wace North America’s Bio-Rad Laboratories Class A BIO Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2021 Q3	$5.19M	Sell	6,953 -9,918	-59%	-$7.43M	0.02%	497
2021 Q2	$10.9M	Sell	16,871 -7,579	-31%	-$4.61M	0.05%	356
2021 Q1	$14M	Buy	24,450 +14,311	+141%	+$8.47M	0.06%	335
2020 Q4	$5.91M	Buy	+10,139	New	+$5.77M	0.03%	508
2020 Q3	–	Sell	-1,631	Closed	-$736K	–	1215
2020 Q2	$736K	Sell	1,631 -97	-6%	-$42.8K	﹤0.01%	847
2020 Q1	$605K	Buy	+1,728	New	+$635K	﹤0.01%	718
2019 Q4	–	Sell	-12,109	Closed	-$4.03M	–	1294
2019 Q3	$4.03M	Buy	+12,109	New	+$3.95M	0.02%	401
2019 Q2	–	Sell	-1,933	Closed	-$591K	–	1173
2019 Q1	$591K	Buy	1,933 +232	+14%	+$62.6K	﹤0.01%	764
2018 Q4	$395K	Buy	1,701 +889	+109%	+$239K	﹤0.01%	825
2018 Q3	$255K	Sell	812 -2,081	-72%	-$646K	﹤0.01%	814
2018 Q2	$835K	Sell	2,893 -1,895	-40%	-$523K	﹤0.01%	977
2018 Q1	$1.2M	Buy	4,788 +2,922	+157%	+$744K	0.01%	946
2017 Q4	$445K	Sell	1,866 -8,685	-82%	-$2.1M	﹤0.01%	1166
2017 Q3	$2.34M	Buy	+10,551	New	+$2.37M	0.02%	756
2017 Q2	–	Sell	-1,947	Closed	-$387K	–	1295
2017 Q1	$387K	Buy	+1,947	New	+$375K	﹤0.01%	843